Palynostratigraphy, palaeoclimates and palaeodepositional environments of the Miocene aged Agbada Formation in the Niger Delta, Nigeria

Bankole, Samson; Schrank, Eckart; Osterloff, Peter

doi:10.1016/j.jafrearsci.2014.01.015

Cited by 17 publications

(8 citation statements)

References 21 publications

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“…Studies on the systematics and age determination of palynomorphs species recovered from Late Paleogene and Neogene sediments in the Niger Delta were done by Legoux (1978), Jan du Chêne and Salami (1978) and Oloto (1992), Ola and Adewole (2014), Osokpor et al (2015). Other studies in the Niger Delta involving the applications of palynology in paleoclimate changes (Morley and Richards 1993, Bankole et al 2014, Osokpor et al 2019; high-resolution sequence stratigraphy (Armentrout et al 1999)…”

Section: Previous Palynological Studies In the Niger Delta Basinmentioning

confidence: 99%

Paleodepositional Environment and Sequence Stratigraphy of Miocene Sediments in Well TN-1, Coastal Swamp Depobelt, Niger Delta Basin, Nigeria

Osokpor

Maju-Oyovwikowhe

2021

Tanz. J. Sci.

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This research focused on the interpretation of paleodepositional environment and development of a sequence stratigraphic framework for the well TN-1 section, located in the coastal swamp depositional belt of the Niger Delta Basin. Integration of interpreted litho- and biofacies data sets that facilitated the interpretation of the paleodepositional environment enabled the erection of a sequence-stratigraphic framework. Three lithotypes (sand, clay, and shale) distributed within fourteen facies variants were integrated with palynomorph components to delineate five paleodepositional cycles ranging from distal delta plain to bathyal. Eight systems tracts (closely related to depositional cycles, but transcended depositional boundaries in some intervals) that hosted three maximum flooding surfaces (MFS), three sequence boundaries (SBs), distributed within four third-order and three second-order sequences, were defined. Age-significant palynomorphs recovered indicated an Aquitanian to Messinian age range (with non-deposition or erosion of Burdigalian, Langhian, Serravallian Stages sediments), distributed within five pollen zones (P628–P840) that correlated with published global cycles. This study demonstrates the significance of integrated studies to erect a sequence-stratigraphic framework applicable for field and basin-scale exploration and exploitation purposes. Keywords: Sequence stratigraphy, paleodepositional cycles, systems tract, cyclic sedimentation,lithofacies analysis, integrated studies.

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Section: Previous Palynological Studies In the Niger Delta Basinmentioning

confidence: 99%

Paleodepositional Environment and Sequence Stratigraphy of Miocene Sediments in Well TN-1, Coastal Swamp Depobelt, Niger Delta Basin, Nigeria

Osokpor

Maju-Oyovwikowhe

2021

Tanz. J. Sci.

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“…Although much palynological works have been carried out in the Niger Delta basin, there is little published information available due to confidentiality maintained by oil companies operating in Nigeria however, the palynology of the of the Tertiary Niger Delta has attracted the attention of several workers as: [1,2,3,4,5,6], among others. Evamy et al [3], erected the pollen zones of the Niger delta published in the Niger delta chronostratigraphic chart which has been used to correlate rocks from Niger delta and adjacent basins.…”

Section: Previous Palynological Studiesmentioning

confidence: 99%

“…The propitious Niger Delta geology has been fairly studied since the discovery of oil in this basin in 1958. Among the workers are [14,15,16,17,18,19,6], among others.…”

Section: Basin Stratigraphymentioning

confidence: 99%

Palynomorphs and Age Characterization of Rock Succession in Well X-1, OML 108, Offshore Niger Delta Nigeria

Asadu

Odumoso

2020

JGEESI

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Palynological studies in Nigeria are mainly confined to the Tertiary Niger Delta, where several studies have been carried out for the discovery of natural oil and gas in this particular basin during late 1950s. The accuracy and profitability of the exploration process can be enhanced by the micropaleontological monitoring through the palynological analysis of ditch cuttings for age determination. Fifty ditch cutting samples from intervals 8040 ft and 11010 ft of Well X-1, OML 108, Ukpokiti field, offshore Niger Delta Nigeria were analyzed for their palynofloral content, in a view to establish the biozonation framework for the purpose of age characterization of the rock succession. Palynological sample processing and analysis followed standard methods of treatments with different concentrations of Hydrochloric acid, Hydrofluoric acid and organic acid for digestion of carbonates, removal of silicates and washing or centrifuging for concentration of the palynomorphs respectively in order to liberate the palynomorphs from the extraneous organic matter in the rock matrix. The palynofloral analysis yielded a total number of forty-three (43) pollen, seven (7) spores and one dinoflagellate cyst, from which four subzones based on palynofloral assemblage of marker species, their stratigraphic tops and base including their abundance and diversity were recognized. The zones are from youngest to oldest: Stereisporites sp, Racemonocolpiteshians, Verrutricolporitesrotundiporus and Retibrevitricolporitesobodoensis/protundens zones corresponding with pollen sub zones:P850-830, P820, P780 and P770respectively, indicatingLate Miocene to Middle Miocene age. In conclusion, the palyno – zones of this study compare well with the pollen zones of [3], therefore shows that the rock succession was deposited during the Middle to Late Miocene epoch.

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“…Fusiformisporites pseudocrabbii was found in the Eastern Niger Delta in Nigeria (Ajaegwu et al, 2012) and in the Parana Formation of Argentina (Garralla, 1989). Fusiformisporites crabbii is known from the Niger Delta (Bankole et al, 2014) and in Mizoram of NE India (Nandi and Sinha, 2007;Kar et al, 2010). Fusiformisporites acutus is described from the Miocene Quilon Beds of Kerala State in India (Kumar, 1990).…”

Section: Geological Evidence For the Evolution Of Aquatic Ascomycetesmentioning

confidence: 99%

Non-pollen palynomorphs notes: 2. Holocene record of Megalohypha aqua-dulces, its relation to the fossil form genus Fusiformisporites and association with lignicolous freshwater fungi

Shumilovskikh

Ferrer

Schlütz

2017

Review of Palaeobotany and Palynology

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The first Holocene record of the freshwater ascomycete Megalohypha aqua-dulces from the sediment core Kongor (NE Iran) is presented here. Based on the similarity of the spore morphology with the fossil form genus Fusiformisporites, we establish a link between extant and fossil taxa. Comparative analysis of morphological characteristics of fossil spores of Fusiformisporites indicates that several different fungal groups might be included in this form genus. At least five species of Fusiformisporites share similar morphology with spores of Megalohypha aqua-dulces: Fusiformisporites annafrancescae, Fusiformisporites crabbii, Fusiformisporites keralensis, Fusiformisporites paucistriatus, and Fusiformisporites pseudocrabbii. Based on Fusiformisporites, the evolution of Megalohypha aqua-dulces can be traced to the late Cretaceous, corresponding with diversification of the flowering plants and pointing to a co-evolution of both groups. Megalohypha aqua-dulces has a tropical to subtropical distribution but also occurs in the semi-arid steppe environments of Kongor together with other freshwater fungal genera such as Xylomyces, Dictyosporium, and Sporoschisma, which spores we describe here. The ecological requirements of Megalohypha indicate that its spores can be used for the palaeoecological sign of dead submerged wood as well as of tropical to subtropical conditions.

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Palynostratigraphy, palaeoclimates and palaeodepositional environments of the Miocene aged Agbada Formation in the Niger Delta, Nigeria

Cited by 17 publications

References 21 publications

Paleodepositional Environment and Sequence Stratigraphy of Miocene Sediments in Well TN-1, Coastal Swamp Depobelt, Niger Delta Basin, Nigeria

Paleodepositional Environment and Sequence Stratigraphy of Miocene Sediments in Well TN-1, Coastal Swamp Depobelt, Niger Delta Basin, Nigeria

Palynomorphs and Age Characterization of Rock Succession in Well X-1, OML 108, Offshore Niger Delta Nigeria

Non-pollen palynomorphs notes: 2. Holocene record of Megalohypha aqua-dulces, its relation to the fossil form genus Fusiformisporites and association with lignicolous freshwater fungi

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